A couple more ought to do it.

Down below, Selas' eyes have rolled back into her head. It looks like she's on the verge of passing out. Pulling out of her mouth, you leave her to the tender mercies of your dupes while you try to whip up a couple more. "Wait, wait! Stop! Please!" she begs, trying to get you to give her oxygen starved body a chance to rest.

Her cries fall upon deaf ears as the dupes descend on her, chuckling menacingly. Forcing her to her feet, one of them jams his lips against hers and roughly squeezes her breast while the other rips her panties off her. "Hey! Look at this lads!" it says, spreading her legs wide and rubbing his finger against her slit. It comes away damp, covered in a sticky liquid. "The bitch is wet!"

"NO! NO! Don't look there!" she shrieks and tries to close her legs, but that dupe already has his head buried in her crotch, lapping up her juices like a starving dog.

Meanwhile, you're snarling and growling in effort, sweat falling off your chin as you try to take whatever that was filling you with energy and turn it into two more "you"s. With a pained grunt, the new dupes pop into existence from your sides and immediately join the others, already knowing the plan. Sitting down on the floor, you take a few minutes to rest and process the feedback from what your dupes are feeling while Selas writhes and screams in torturous over-stimulation as every inch of her body is molested by your dupes.